Cal. Bus. & Prof. Code § 24076

No licensee shall enter into any agreement wherein he pledges the transfer of his license as security for a loan or as security for the fulfillment of any agreement. No license shall be transferred if the transfer is to satisfy a loan or to fulfill an agreement entered into more than 90 days preceding the date on which the transfer application is filed, or to gain or establish a preference to or for any creditor of the transferor, except as provided by Section 24074, or to defraud or injure any creditor of the transferor.